Hi.
I will listen here as I would like to know to.
I do not know what the bandwith is for. I would like to know to. Both with and with out limits in the service curve
Regarding the link share I guess it is the quaranteed bandwith share if the connection is congested. If there is free capacity then more traffic can be given to the queue. To avoid a queue to use all your bandwith you can add an "upperlimit" along with your linkshare. Say 5% linkshare and 15% upperlimit. Then the queue will have minimum 5% when line is congested and a max of 15% even if there is a lot of free capacity.
Why you do math I do not understand. 3x10% What are you trying to ask? I you have a queue with 50% and a subqueue with 50% the last will get 50% of 50% = 25% of the bandwith. But I guess that is not your question.